Dell Latitude D620 Bedienungsanleitung Seite 88
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Fill out the Diagnostics Checklist (see Diagnostics Checklist) as you perform the various checks.
External Keyboard problems
Check the keyboard cable — Shut down the computer. Disconnect the keyboard cable and check it for damage, and firmly reconnect the cable.
If you are using a keyboard extension cable, disconnect it and connect the keyboard directly to the computer.
Check the external keyboard —
1. Shut down the computer, wait 1 minute, and turn it on again.
2. Verify that the numbers, capitals, and scroll lock lights on the keyboard blink during the boot routine.
3. From the Windows desktop, click the Start button, point to Programs, point to Accessories, and click Notepad.
4. Type some characters on the external keyboard and verify that they appear on the display.
If you cannot verify these steps, you may have a defective external keyboard.
To verify that the problem is with the external keyboard, check the integrated keyboard —
1. Shut down the computer.
2. Disconnect the external keyboard.
3. Turn on the computer.
4. From the Windows desktop, click the Start button, point to Programs, point to Accessories, and click Notepad.
5. Type some characters on the internal keyboard and verify that they appear on the display.
If the characters appear now but did not with the external keyboard, you may have a defective external keyboard. Contact Dell (see Contacting Dell).
Run the keyboard diagnostics tests — Run the PC-AT Compatible Keyboards tests in the Dell Diagnostics (see Dell Diagnostics). If the tests indicate a
defective external keyboard, contact Dell (see Contacting Dell).
Unexpected characters
Disable the numeric keypad — Press <Num Lk> to disable the numeric keypad if numbers are displayed instead of letters. Verify that the numbers lock light is
not lit.
Lockups and Software Problems
The computer does not start up
Ensure that the AC adapter is firmly connected to the computer and to the electrical outlet.
The computer stops responding
NOTE: Use the integrated keyboard when running Dell Diagnostics or the System Setup program.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTICE: You might lose data if you are unable to perform an operating system shutdown.
- Abbreviations and Acronyms 1
- About Your Computer 2
- Left Side View 4
- Right Side View 5
- Back View 6
- Bottom View 7
- Appendix 9
- Macrovision Product Notice 10
- FCC Notice (U.S. Only) 10
- Using a Battery 11
- Conserving Battery Power 12
- Power Management Modes 12
- Charging the Battery 13
- Storing a Battery 14
- Replacing the Battery 14
- Using Cards 15
- Removing a Card or Blank 16
- Using the Display 17
- Reinstalling Software 20
- Creating a Restore Point 22
- Before You Begin 23
- Reinstalling Windows XP 23
- Finding Information 25
- Back to Contents Page 27
- Glossary 28
- Getting Help 36
- Problems With Your Order 37
- Product Information 37
- Before You Call 38
- Contacting Dell 38
- Using the Keyboard 46
- Touch Pad 47
- Using Multimedia 49
- Adjusting the Picture 50
- Before You Begin 51
- Hinge Cover 52
- Keyboard 52
- Coin-Cell Battery 54
- Memory 55
- Mobile Broadband Card 59
- Hard Drive 61
- Media Bay 62
- Dell™QuickSetFeatures 64
- Securing Your Computer 65
- Passwords 66
- Using a Hard Drive Password 67
- Enabling the TPM Feature 68
- Computer Tracking Software 69
- System Setup Program 70
- Changing COM Ports 71
- Enabling the Infrared Sensor 71
- Specifications 72
- Identifying Your Computer 78
- Packing the Computer 78
- Travel Tips 78
- Troubleshooting 80
- Dell Diagnostics Main Menu 81
- Dell Support Utility 82
- Drive Problems 82
- CD and DVD drive problems 83
- Hard drive problems 83
- Error Messages 85
- Keyboard Problems 87
- External Keyboard problems 88
- Unexpected characters 88
- Memory Problems 90
- Network Problems 90
- General 91
- Mobile Broadband Network 91
- Power Problems 92
- Printer Problems 93
- Scanner Problems 93
- Sound and Speaker Problems 94
- Video and Display Problems 95
- Using a Network 97
- Setting Up a New WLAN 98
- Mobile Broadband Network 100
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